Discus



May a, 1924.

H. L. GILL Filed July ll. 1922 Patented May 6, 1924.

units. STATES {PA ENT EFIC E.

. URBANA, ILLINOIS, A oonronn'rrolv'or tLINoI's.

4 DISCUS."

Application filed July 11,

To all whom it may concern:

Be it known that I, HARRY L. GILL, a citizen of the United States,residing at Urbana, in the State of Illinois, have invented i certainnew and useful Improvements in Discuses; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as well enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to improvements in a discus, such as isordinarily used in sports and games of skill, and has for its principalobject the construction of such a discus, which shall be of solidconstruction, composed of a minimum of parts and not liable to becomedisassembled even though subjected to extremely rough usage.

7 A further object of the invention is the provision of a discus whichwhen thrown will have a regular and even motion through the air andmaintain a perfect equipoise at all times.

Another important object of the invention is the provision of improvedmeans for attaching an outer metal rim to the wooden core of a discus,whereby the outer rim will be securely fixed thereto, and which willobviate the necessity of first heating 110 the rim and then shrinkingthe same onto the core as has previously been done.

Other and further important objects of the invention will be apparentfrom the disclosures in the accompanying drawings 35 and followingspecification.

The invention, in a preferred form,'is illustrated in the drawings andhereinafter more fully described.

In the drawings:

40 Figure 1 is a plan view of the improved discus of this invention.

Figure 2 is a sectional view of the same.

As shown in the drawings:

The reference numeral 10 indicates the 4.5 core or body of the discus,which is usually of wood but which may be of any. other material asdesired. The core is tapered toward its periphery as shown in thedrawings, and as is usual in constructions of no this sort.

Both faces of the core are slightly fiattened andupon these flattenedfaces are attached circular plates 12 of brass or any other suitablemetal. These plates are fixed as in position by means of a plurality ofscrews 1922. Serial No. 574,321.

as shown at 14:. These screws extend only for a relatively shortdistance into the material of the core, thereby rendering the plates 12independent of each other and affording a very secure connection betweenthe plates and the material of the core itself.

A circular metal rim 16 binds the outer edge, of the discus. As shown at18, the inner face of the metal rim 16 is provided 05 with tapered screwthreads, and the outer rim of the central core 10 is likewise providedwith corresponding tapered threads. This provides a means whereby theouter rim 16 may be securely attached to the core 10 and an adhesivesubstance, such as glue, shellac or the like, may be used in order tofirmly bind the rim on to the core 10 by means of the screw threads 18.

It will be seen that herein is provided a discus which can be madeabsolutely 30011-3 rate both as to size and weight so as toconformexactly to the rules of the leading athletic associations of the UnitedStates and foreign countries. struction herein illustrated is aparticularly simple one and provides a device which can be used for anindefinite length of time without becoming loose or subject to rattlingor wearing unevenly in portions 35 thereof. 7

The threaded construct-ion whereby the outer rim is attached to thecentral core provides a connection that will at all times remain tightand cannot fall off. The plates 12 are also so attached that there is nopos sibility of their becoming loose or even of shrinking or warpingaway from the body of the discus. I In addition, the use of a waterproofcement to supplement the tapered screw threaded attachment of the outerrim will insure a very substantial and therefore desirable construction.

I am aware that many changes may be made and numerous details ofconstruction varied throughout a wide range without departing from theprinciples of this invention, and I therefore do-not purpose limitingthe patent granted hereon otherwise than as necessitated by the priorart.

I claim as my invention: v

1. A discus comprising in combination',a tapered central core comprisinga unitary solid block of wood, circular metallic side plates afiixed tosaid core on opposite sides 11 Further, the con- 80 l thereof; and;means for maintaining said,

aifixed to the center of each 'face of said; 7'

core, and fastening means for the plates, sald fastening meanscomprising screws extending into the core toward each other but 10 ,ofsuch length as to preclude contact.

In testimony whereof I afiix my signature! 'EARRY L. cgLL.

